Siphon for dispensing carbonated liquids



Patented Mar. 28, I899.

K. M. STAHL.

SIPHON FOR DISPENSING CARBONATED LIQUIDS.

(Application filed Mar. 1, 1898.)

(No Model.)

11W k M I I, Z I \AI .N 1 6 IN ins co. mom-urns. WAEHINGTD UNrrn STATES Enron,

PATENT KARL M. STAHL, OF NE? YORK, N. Y., ASSIGNOR OF ONE-HALF TO RICHARD VON SCHLEMMER, OF SAME PLACE, AND CARL FERRARI,

OF HOBOKEN, NEW JERSEY.

SIPHON FOR DISPENSING, CARBONATED LIQUIDS.

SPECIFICATION forming part of Letters Patent No. 621,866, dated March 28, 1899. Application filed March 1, 1898. Serial No- 672,188. (No model.)

To (0Z6 whom, it may concern;-

Be it known that I, KARL M. STAHL, a citizen of the United States, residing at New York, in the borough of Manhattan and State of New York, have inventedcertain new and useful Improvements in Siphons for Dispensing Carbonated Liquids, of which the following is a specification.

This invention relates to an improved siphon for dispensing fermented and other liquids under uniform pressure of carbonicacid gas, said siphon being so constructed that it can be readily charged with liquid and carbonic-acid gas, respectively, shipped with great facility, and used for drawing ofi the contents with great convenience; and the invention consists in a siphon for carbonated liquids which comprises a vessel for the liquid, a head attached to said vessel, a receiver in said head containing liquid carbonic acid, a channel in said receiver, a needle-valve for opening or closing said channel, a gas-supply tube connecting said receiver with the vessel, a discharge-tube, a pressure-regulating valve in said discharge-tube, a nozzle connected with the discharge-tube, a valve for opening or closing said nozzle, and a lever for simultaneously opening or closing the needle-valve and the discharge-valve.

The invention consists, further, of certain details of construction, which will be fully described hereinafter and finally pointed out in the claims.

In the accompanying drawings, Figure 1 represents a front elevation of my improved siphon for dispensing carbonated liquids. Fig. 2 is a vertical longitudinal section of the same on line 2 2, Fig. 1, drawn on a larger scale. Fig. 3 is a vertical transverse section of the valve of the discharge-nozzle; and Fig. 4 is an elevation, partlyin section, of the valvecasing and valve in closed position with a portion of the casing broken away to show the valve.

Similar letters of reference indicate corresponding parts.

Referring to the drawings, A represents a vessel which is made of glass, metal, or other suitable material. and of suitable strength, so

as to resist the pressure of the gas which is charged in the same. The vessel A is preferably made in the shape of a keg, with exterior bands indicating hoops, and of such size as to contain one gallon, though vessels containing a larger quantity of liquid may be used. The vessel A is provided with an opening a in its top and with a flanged rim a around said opening, said rim having a screwthread pressed into its exterior surface. A bushing b is screwed onto the flanged rim a of the vessel A, said bushing being of U shape and provided with an interior screw-thread, into which thehead B of the siphon is screwed. The lower portion of the head B is provided for this purpose with an exteriorscrew-thread and tightly applied to the bushing 19 by an elastic gasket 12 and screw-collar b, as shown in Fig. 2. To produce the tight connection of the bushing Z) with the exteriorly-threaded rim, a suitable cement or packing vmaterial is interposed between the bushing and the flanged rim a. By the collar b and gasket b the tight connection of the head B with the bushing 11 is obtained, so as to prevent any escape of gas at this point.

The head B is formed of two portions-a lower portion B, having a web 0, and an upper portion or cap B which is screwed by an interior screw-threaded portion and the exteriorly-threaded upper end of the lower por= tion. The web 0 of the lower portion B and the cap B form a receiver for the liquid carbonic acid. The head B is preferably made of steel of sufficient strength to resist the pressure'of liquid carbonic acid that is to be charged into the receiver. The web 0 is provided at its under side with a ring-shaped interiorly-threaded socket or nipple O, by which connection can be made with a cylinder containing commercial liquid carbonic acid whenever the receiver is to be charged with liquid carbonic acid. The web 0 is provided with a small outlet-channel 0, that leads from the receiver into the nipple O. From said channel extends a bore 0 radially through the web, which bore is provided with an interior screw-thread, in which a needle-valve D is screwed, the conical or rounded-off inner-end of which serves to close or open the channel 0. A gas-supply pipe E is screwed into the web C, so as to communicate with the channel 0, said pipe being preferably made of glass or other suitable material and extended into the vessel A, so as to conduct the carbonic-acid gas from the receiver to the lower part of the vessel A.

The stem (1 of the needle-valve D is surrounded by a stufling-box f, so as to produce the tight connection of the needle-valve with the head B and prevent any leakage of gas. The outer end of the stem of the needle-valve D is made square, so as to permit the application of a key K to the same. The head 13 is further provided below the web C with a downwardly-extending outlet-pipe F, which has an enlarged portion F for receiving a weighted ball-valve F by which the pressure at which the liquid is kept in the Vessel A is.

regulated. From the upper end of the outlet-pipe F extends a nozzle F which is of sufficient length to extend over the top of the vessel, it being bent in downward direction at its outer end, so as to discharge the liquid in the vessel into a tumbler or other vessel. In place of the weighted valve in the outletpipe F any other approved pressure-regulating valve may be used. The nozzle F is made of two parts, which are connected by means of plates and screw-bolts, between which a discharge-valve F, which is shown in detail in Figs. 3 and 4., is located. The discharge-valve F* is formed of a segmental plate,which is tightly held between the screwplates by suitable washers, and provided with a larger segmental opening 0 for the nozzle and a smaller segmental opening 0 for one of the connecting screw-bolts. The dischargevalve F is extended at its center portion above the screw-plates and provided with a hub g, having a square opening g, by which it is connected with the square stem d of the needle-valve D. The needle-valve, as well as the discharge-valve of the nozzle F, is opened by the key K, which is placed on the square shank of the needle-valve and which is provided with an extension 772, carrying a set-screw m, that abuts against the nozzle when the needle-valve is opened to its fullest extent, as shown, respectively, in full and in dotted lines in Fig. 4.

In Fig. at the valve F is shown in one position only, a portion beingindieated against the background of a rubber washer, the opposite rubber washer and screw-plate being broken away, and a portion indicated in dotted lines and the hub shown in full lines. In this position the valve is closed. The key K and the extension m are shown in two positions, that in full lines being the closed and that in dotted the open position. As the valve F is opened it projects from between the screw-plates. To avoid confusion in the drawings, however, the valve is not shown in open position. The connecting screw-bolt, which passes through the smaller slot 0 is fastened supply pipe detached.

to the screw-plates and serves to limit the movementwhen the valve is moved from open into closed position.

WVhen the needle-valve is turned by the key, some of the gas is permitted to expand from the receiver into the vessel A until sui'iieient pressure is in the vessel to overcome the counter-pressure of the valve in the discharge pipe F. Simultaneously the discharge valve F is moved and the nozzle opened, so that liquid under pressure may be discharged from the vessel A. It was found by practice that the needle-valve D had to be opened to some extent before the dischargevalve was opened, so as to secure a suifieient supply of gas to the vessel A to overcome the pressure-regulating valve, and for this purpose it was necessary that the dischargevalve should have a certain play while opening the needle-valve. For this purpose the slotted valve 13 is made of sufficient length to permit it moving over the nozzle without opening the same, while the needle-valve is gradually opened until the counter-pressure of the pressure-regulatin g valve in the outletpipe is overcome, and on further movement of the discharge-valve the nozzle is opened and a steady outflow of liquid produced from the start. The joint use of a pressure-regulating valve and an independent dischargevalve produces a steady outflow of the liquid from the vessel when the needle-valve is opened suffieiently so as to produce the required gas-pressure in the vessel. This can be regulated to a nicety by the valve construction described, in which the turning of the needle-valve can be continued while the discharge-nozzle is open, so that the supply of carbonic-acid gas from the receiver to the vessel is kept within full control and a regular flow of the liquid from the vessel is obtained at any desired pressure. By means of the set-screw m, which abuts against the discharge-nozzle when the valves are opened to their fullest extent, further turning of the needle-valve is prevented and the maximum pressure under which the liquid can be discharged is thereby regulated.

\Vhen a sufficient quantity of liquid is drawn off from the vessel, the needle-valve and discharge-valve are closed and the outfiow of liquid interrupted. The pressureregulating valve is preferably set to a pressure of eight pounds; but it can be set for any other pressure under which the liquid is to be dispensed from the vessel A.

My improved siphon for fermented and other liquids is used as follows: The head 13 is unscrewed from the vessel A and the gas- The nipple of the receiver is then connected with a coupling at the end of the discharge-pipe of a cylinder containing liquid carbonic acid. The needlevalve of the receiver then opens, so that the channel 0 is opened, also the stop-cock of the cylinder. As soon as the latter is opened the liquid carbonic acid is quickly transferred into the receiver, so as to charge the latter, after which the needle-valve is closed, so that no gas can escape from the same. The head is then unscrewed from its connection with the discharge-pipe of the carbonic-acid cylinder. Before the head is screwed onto the vessel the same is filled with fermented or other liquid which is to be dispensed from the same. The gas-supplytube is then screwed again into the web of the receiver and the head screwed tightly into the bushing on the I vessel, after which the siphon is ready for shipment and use. When it is desired to draw liquid from the siphon, the key is applied to the outer end of the needle-valve and the same opened to the required extent until a sufficient quantity of gas under pressure is supplied to the liquid in the vessel A, constituting a pressure in the same sufficient to overcome the counter-pressure of the valve F As the discharge-valve F is opened with the needle valve D liquid is discharged through the nozzle as soon as the required gas-pressure is established in the vessel A. lVhen the required quantity is drawn off, the needle-valve is closed again by turning the key in the opposite direction, by which motion the discharge-valve of thenozzle is likewise closed. This operation is repeated until the contents of the siphon are drawn off. After the siphon is empty it is returned to the bottles for refilling, which is accomplished in the manner before described. My improved siphon for fermented and other liquids is designed for the purpose of permitting beer and other liquids to be supplied to cus tomers in the same manner as carbonated waters are now supplied for domestic consumption. The siphons are made of such shape that they can be readily placed in a refrigerator for cooling; They can easily be carried by applying a bail to the head of the siphon. The size of the receiver is so proportioned that one charge of the same is greater than required for drawing off the contents of the siphon. As the liquid is kept under pressure of carbonic-acid gas and drawn off under pressure it is always in fresh and palatable condition and furnishes thereby to the individual consumer all the advantages of fermented liquids drawn from the wood.

Having thus described my invention, I claim as new and desire to secure by Letters Patent.

1. The combination, with a vessel containing fermented or other liquid, of a receiver attached to said vessel and containing liquid carbonic acid, a channel connecting said vessel and receiver, a-needle-valve for opening and closing said channel, a discharge-tube, a

pressure-regulating valve for said discharge.

tube, a nozzle connected with the dischargetube, a valve for opening and closing said nozzle, said nozzle-valve being applied to the spindle of the needlevalve, and means for operating said needle-valve, substantially as set forth.

2. The combination of a vessel, containing fermented or other liquid, a head attached to said vessel, a receiver in said head containing liquid carbonic acid, an outlet-channel in the web of the receiver, a gas-supply tube screwed into the receiver so as to connect with said orifice, said discharge-tube extending from the receiver into the vessel, a needle-valve for opening and closing said outlet orifice or channel, a discharge-tube connected with the lower part of the head, a pressure-regulating valve in said discharge-tube, a nozzle connecting with the upper end of the discharge-tube, a valve-casing on said nozzle, a valve guided in said valve-casing and connected with the shank of the needle-valve, said discharge valve being provided with a segmental opening, and means for simultaneously opening the needle-valve and discharge-valve, the discharge-valve following the motion of the needle-valve to a certain extent so as to permit the supply of a suflicient quantity of gas to the vessel for overcoming the counter-pressure of the regulating-valve and producing the uniform discharge of liquid, substantially as set forth.

3. The combination of a vessel containing fermented or other liquid, a head applied tightly to said vessel, a receiver containing liquid under pressure in said head, an outletchannel in the web of the receiver, a gassupply tube connecting said outlet-channel with the interior of the vessel, a needle-valve for opening and closing said outlet-channel, said needle -valve having a shank with a square outer end, a discharge-tube attached to the lower part of the head, a pressnre-regiv lating valve in said discharge-tube, a nozzle connected with the upper end of said dis charge-tube, a valve-casing on said nozzle, a

valve provided with a hub applied to the square end of the needle-valve and having a segmental slot for opening said nozzle, and a key applied to the square end of the needle Valve and provided with a stop-screw for arresting the motion of the valves when open ing the same, substantially as set forth.

4. The combination, with a vessel contain= .ing fermented or other liquid, of a receiver containing gas under pressure, a passage'for said gas connecting said vessel and receiver, a valve for opening and closing said passage, a discharge-tube for said vessel, a pressure- ICG regulating valve for said discharge-tube, a

nozzle connected with the discharge-tube, and a valve for opening and closing said nozzle, said nozzle-valve being adapted to be operated during the-operation of the passage-valve and to open the nozzle after said passage is opened, whereby initial pressure is produced on the liquidin said vessel for overcoming the pressure of the pressure-regulating valve, substantially as set forth.

set-screw carried by said key and adapted to I abut against said discharge-nozzle for regulating the maximum pressure on the liquid in said vessel, substantially as set forth.

In testimony that I claim the foregoing as inyinvention I have signed my name in presence of two subscribing Witnesses.

KARL M. S'IAl] L.

\Vitnesses:

GEO. W. J AEKEL, KARL KAELBLY. 

